90: optical, photo, cine, meas, checking, precision, etc

9001: optical fibre, cables; sheets & plate of polarizing mat; lenses/prism 9002: Lenses, prisms, mirrors & other optical elements, of any material, mo 9003: Frames & mountings for spectacles, goggles or the like, & parts there 9004: Spectacles, goggles and the like, corrective, protective or other 9005: Binoculars, monoculars; astronomical instruments & mountings thereof 9006: Photograph camera; photograph flashlight app o/t discharge lamp of 85 9007: Cinematographic cameras & projectors, w/n incorp sound record/reprdc 9008: Image projectors, o/t cinematographic; photographic enlargers & reduc 9009: Photo-copyg app incorp an optical sy/of the contact type & thermo-cop 9010: Apparatus & equip for photographic laboratories nes 9011: Compound opticl microscop, incl for microphotography/microprojectn 9012: Microscopes other than optical microscopes; diffraction apparatus 9013: Liquid crystal devices; lasers; other optical appl & instruments nes 9014: Direction finding compasses; other navigational instruments & applian 9015: Surveyg, hydrographc, oceanographc, meteorologicl instruments & appli 9016: Balances of a sensitivity of 5 cg or better, with or without weights 9017: Drawing, marking-out/mathematical calculating inst, inst for meas len 9018: Instrument & appl usd in vet/med/surg/ dental, other electro-medicl a 9019: Mechan-therap appl; massage app; ozon/oxygen & aerosol therap; arti r 9020: other breathing appl & gas masks, excl prot masks w/o mech pts/filter 9021: orthopaedic appl, incl crutche/surgical belts & trusse; splint, heari 9022: Apparatus based on the use of X-rays/of alpha, beta/gamma radiations 9023: Instruments, apparatus & models, designed for demonstrational purpose 9024: Machines & appl for testg the hardnes /strength/o mech propertie of m 9025: Hydrometers & similar floating inst, thermometers, etc records/not & 9026: Instruments & app for meas/checking the flow/level/pressure of liq/ga 9027: Instruments & app for physical/chem analysis; inst for viscosity, hea 9028: Ga/liquid/electricity supply/production meter, incl calibrating meter 9029: Revolution counters/taximeters & the like; speed indicators/tachomete 9030: oscilloscope/spectrum analysers & other inst; inst & app for mea ioni 9031: Measuring or checking inst, appl & mach, nes or incl in this chapter 9032: Automatic regulating or controlling instruments and apparatus 9033: Parts & accessorie (nes/incl in thi ch) for mach, appl, inst/app of c 90: optical, photo, cine, meas, checking, precision, etc